Scan Tool Testing and Procedures

DIAGNOSIS SYSTEM (TRANSFER CONTROL UNIT)


CONSULT-III Function (ALL MODE AWD/4WD)


FUNCTION
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.






SELF DIAGNOSTIC RESULT MODE

Operation Procedure
1. Connect CONSULT-III.
2. With engine at idle, touch SELF-DIAG RESULTS.
Display shows malfunction experienced since the last erasing operation.

NOTE:
The details for TIME are as follows:
- 0: Error currently detected with transfer control unit.
- Except for 0: Error detected in the past and memorized with transfer control unit.
Detects frequency of driving after DTC occurs (frequency of turning ignition switch ON/OFF).

How to Erase Self-diagnostic Results
1. Perform applicable inspection of malfunctioning item and then repair or replace.
2. Start engine and select SELF-DIAG RESULTS mode for ALL MODE AWD/4WD with CONSULT-III.
3. Touch ERASE on CONSULT-III screen to erase DTC memory.

CAUTION:
If memory cannot be erased, perform applicable diagnosis.

SELF-DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-III)

Description
If the engine starts when there is a malfunction in the 4WD system, the 4WD warning lamp turns ON or flickers in the combination meter. When the system functions properly, the warning lamp turns ON when the ignition switch is turned to ON, and it turns OFF after engine starts. To locate the cause of a malfunction, start the self-diagnosis function. The 4WD warning lamp in the combination meter will indicate the malfunction area by flashing according to the self-diagnostic results. Testing and Inspection.

Diagnostic Procedure
1. Warn up engine.
2. Move A/T selector lever to P position.
3. Turn 4WD shift switch to 2WD position.
4. Turn ignition switch ON and OFF at least twice, and then turn ignition switch OFF.
5. Turn 4WD shift switch to AUTO position.
6. Turn ignition switch ON. (Do not start engine.)
7. 4WD warning lamp ON.
8. Move A/T selector lever to R position.
9. Turn 4WD shift switch to 2WD, AUTO and 2WD in order.
10. Move A/T selector lever to D position.
11. Turn 4WD shift switch to 4H, AUTO and 4H in order.
12. Move A/T selector lever to N position.
13. Turn 4WD shift switch to AUTO position.
14. Move A/T selector lever to P position.
15. Read the flickering of 4WD warning lamp.

Self-diagnosis example






ERASE SELF-DIAGNOSIS
- In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is stored into the control unit as necessary during use by the user. This memory is not erased no matter how many times the ignition switch is turned ON and OFF.
- However, this information is erased by turning ignition switch OFF after performing self-diagnostics or by erasing the memory using the CONSULT-III.

DATA MONITOR MODE

Operation Procedure
1. Connect CONSULT-III.
2. Touch DATA MONITOR.
3. Select from SELECT MONITOR ITEM, screen of data monitor mode is displayed.

NOTE:
When malfunction is detected, CONSULT-III performs REAL-TIME DIAGNOSIS.
Also, any malfunction detected while in this mode will be displayed at real time.

Display Item List
















WORK SUPPORT
When there is no malfunction with transfer and 4WD system, the following symptoms in AUTO mode may be claimed by a customer: vibration when accelerating on a low � road (snow-covered or icy road) or a slight shock is felt at a few hertz as if it were being pushed lightly from behind.
It is possible to deal with these symptoms by changing the CLUTCH FORCE RELEASE LIMIT VALUE. However, be careful when changing the value because it may adversely affect driving performance.

Operation Procedure
1. Connect CONSULT-III.
2. Touch WORK SUPPORT.
3. Select from CLUTCH/F RLS LIM ADJ, screen of data monitor mode is displayed.

Clutch Force Release Limit Adjustment
1. Initial CLUTCH FORCE RELEASE LIMIT value 0.3 kg-m appears under CONDITION SETTING on CONSULT-III display.

1.2 kg-m : Tight corner braking symptom is alleviated. However, vibration may occur when accelerating on a low friction road (icy road, etc.).
0.3 kg-m : Initial set value.
0.2 kg-m : Do not set to this value because the tight corner braking symptom will get worse.

2. Touch 1.2 on the display.
3. Display changes to NOW ADJUSTING in a short time.
4. When clutch force release limit value is set to 1.2 kg-m, current value 0.3 kg-m shown on display will be replaced by 1.2 kg-m and ADJUSTMENT COMPLETE will appear at the same time. Clutch force release limit value setting is now complete.